Function IsUint

Bcore/src/main/cpp/base/bit_utils.h:276–288

template <size_t kBits, typename T>
constexpr bool IsUint(T value) {
  static_assert(kBits > 0, "kBits cannot be zero.");
  static_assert(kBits <= BitSizeOf<T>(), "kBits must be <= max.");
  static_assert(std::is_integral<T>::value, "Needs an integral type.");
  // Corner case for "use all bits." Can't use the limits, as they would overflow, but it is
  // trivially true.
  // NOTE: To avoid triggering assertion in GetIntLimit(kBits+1) if kBits+1==BitSizeOf<T>(),
  // use GetIntLimit(kBits)*2u. The unsigned arithmetic works well for us if it overflows.
  using unsigned_type = typename std::make_unsigned<T>::type;
  return (0 <= value) &&
      (kBits == BitSizeOf<T>() ||
          (static_cast<unsigned_type>(value) <= GetIntLimit<unsigned_type>(kBits) * 2u - 1u));
}

template <size_t kBits, typename T>
constexpr bool IsAbsoluteUint(T value) {